About 400 feet AGL, but on the top of a hill. Here is a shot from an earlier flight the same day, from a lower altitude.

.... Incredible!!!

Rossco, not so much as incredible, but the magic of the AP2000i! There is no practical way the heli could go that high without it, as orientation would be almost impossible. I have attached a shot at a lower altitude, taken with a 4x zoom lens (which clearly wasn't enough!)

Tony Stott

The AP certainly sounds like a good invention - if all goes well on the new 450 SE I am installing it on I will probably get one for my T-Rex 600 too.

Interesting to see that you, like me, use an XL for your AP work. That is my main workhorse at the moment. Very reliable but it will be good to have a full system as a backup by way of the newly converted SE.